import java.applet.*;
import java.awt.*;
import java.awt.event.*;
public class Example100_12 extends Applet implements ActionListener
{
   AudioClip clip;
   Button button_play,button_loop,button_stop;
   public void init()
   {
       clip=getAudioClip(getCodeBase(),"1.Midi");
       button_play=new Button("播放");
       button_loop=new Button("循环");
       button_stop=new Button("停止");
       button_play.addActionListener(this);
       button_loop.addActionListener(this);
       button_stop.addActionListener(this);
       add(button_play);
       add(button_loop);
       add(button_stop);
   }
   public void stop()
   {
       clip.stop();
   }
   public void actionPerformed(ActionEvent e)
   {
       if(e.getSource()==button_play)
       {
           clip.play();
       }
       else if(e.getSource()==button_loop)
       {
           clip.loop();
       }
       if(e.getSource()==button_stop)
       {
           clip.stop();
       }
   }
}编译通过,但是听不到声音的原因?1.midi 文件我和.class 放在同一个文件夹中